Home/Smart Locks/Plastic Card Encoding

SMART LOCK CAPABILITIES

Smart Locks That Support Plastic Card Encoding

Seam supports encoded plastic cards on 91 smart lock models from 4 manufacturers, including Salto, Assa Abloy and Dormakaba.

Ælement - ANSI
Salto
Vingcard Allure
Assa Abloy
790
Dormakaba
Models
91
Brands
4
Systems
6

Live & beta integrations · Device database coverage

Every model, and the systems that cover it

91 models are live or in beta today. Status is per system, so one lock can be Live through one system and unavailable through another. Open a model to see which system covers it.
Systems that issue encoded plastic cards · 6 systems
  • AmbianceLive
  • CommunityLive
  • HotekLive
  • Salto SpaceLive
  • VisionlineLive
  • VostioLive

91 compatible models · showing 8

Browse all 91 model links
Browse all 91 models by brand, connectivity and capability
On this page
Quickstart

Issue a key card in 60 seconds

One Access Grant creates the credential. The last step is physical: an encoder writes it to a blank card, or the system attaches it to a card already registered.

1// Set SEAM_API_KEY on your server.
2import { Seam } from "seam"
3
4const seam = new Seam()
5
6const startsAt = new Date()
7const endsAt = new Date(startsAt.getTime() + 3 * 24 * 60 * 60 * 1000)
8// Replace with your own connected device or entrance ID.
9const grant = await seam.accessGrants.create({
10  user_identity: { full_name: "Jane Doe", email_address: "jane@example.com" },
11  acs_entrance_ids: ["f74e4879-5991-4e2f-a368-888983dcfbfc"],
12  requested_access_methods: [{ mode: "card" }],
13  starts_at: startsAt.toISOString(),
14  ends_at: endsAt.toISOString(),
15})
16console.log(grant.access_grant_id) // Save this ID; retrieve access methods and check is_issued before delivery.
Fastest path

Build it with your AI agent

Install the Seam plugin and your coding agent picks up three integration skills: Reservation Automations, Access Grants and Access Codes. It then writes the calls the way we would. Paste the prompt below and let it build.

1. Install the plugin

/plugin marketplace add seamapi/seam-plugin
/plugin install seam@seamapi

The Claude Code install also adds our documentation MCP server, so the agent can look up endpoints and device capabilities while it works. Cursor, Codex and other agents get the skills through npx skills add and can add the MCP server there separately.

2. Paste this prompt

Prompt
Using the Seam Access Grants skill, walk me through issuing a plastic key card. In a sandbox workspace: create a user identity for a guest, create an access grant on the room and lobby entrances with requested_access_methods [{ mode: "card" }] for a two-night stay, then show me how to encode that access method onto a card with a card encoder and how to scan a card to see what is on it. Point out where is_issued flips from false to true in that sequence.
Walkthrough

How it works

  1. Connect the lock and confirm support

    Your user links their lock or access system account through Seam Connect Webview. Seam returns the doors behind it as devices and entrances. There is no device flag for encoded plastic cards: Seam publishes eight boolean capability flags and this is not one of them. Check the device's capabilities_supported array, or ask for { mode: "card" } in requested_access_methods and handle what Seam reports back.

  2. Create an Access Grant

    Name the person, the doors and the window, then ask for a key card in requested_access_methods. Seam works out how to satisfy that on the specific hardware, so the call is the same for a battery deadbolt and a wired reader. Swap acs_entrance_ids for space_ids to cover a group of doors, or device_ids when the door is a standalone lock. The credential's schedule ends at ends_at. Deleting the grant requests removal of its credentials from the connected device or access system.

    1// Set SEAM_API_KEY on your server.
    2import { Seam } from "seam"
    3
    4const seam = new Seam()
    5
    6const startsAt = new Date()
    7const endsAt = new Date(startsAt.getTime() + 3 * 24 * 60 * 60 * 1000)
    8// Replace with your own connected device or entrance ID.
    9const grant = await seam.accessGrants.create({
    10  user_identity: { full_name: "Jane Doe", email_address: "jane@example.com" },
    11  acs_entrance_ids: ["f74e4879-5991-4e2f-a368-888983dcfbfc"],
    12  requested_access_methods: [{ mode: "card" }],
    13  starts_at: startsAt.toISOString(),
    14  ends_at: endsAt.toISOString(),
    15})
    16console.log(grant.access_grant_id) // Save this ID; retrieve access methods and check is_issued before delivery.
  3. Encode or assign the physical card

    Send the card access method to an encoder to write a blank card, or let the system attach it to a pre-registered one. is_issued stays false until the credential is on plastic, so read false as your cue to encode. Scan an encoded card later to see which credential it carries and when it expires.

    1// Set SEAM_API_KEY on your server.
    2import { Seam } from "seam"
    3
    4const seam = new Seam()
    5
    6// Export SEAM_ACCESS_GRANT_ID using the grant created above.
    7const grantId = process.env.SEAM_ACCESS_GRANT_ID
    8if (!grantId) throw new Error("Set SEAM_ACCESS_GRANT_ID")
    9const methods = await seam.accessMethods.list({ access_grant_id: grantId })
    10// Use the access_method_id with your card encoder; is_issued becomes true after encoding.
    11for (const method of methods) {
    12  if (method.mode === "card") {
    13    console.log(method.access_method_id)
    14  }
    15}
FAQ

Frequently asked questions

Which smart locks support encoded plastic cards?

Seam supports encoded plastic cards on 91 smart lock models from 4 manufacturers, including Salto, Assa Abloy and Dormakaba. The table on this page comes from Seam's device database, and each model links to its own page with the per-system status and any hardware requirements.

How do I check whether a system can encode a card for a door?

Not with a device flag. can_encode_plastic_cards is a device database capability, not one of the eight booleans on the API's device object. Read capabilities_supported, or request { mode: "card" } on the Access Grant and handle what comes back.

Do I need a card encoder at the property?

For systems that write credentials onto blank cards, yes: Seam creates the credential and drives your existing encoder. Other systems assign the credential to a card that is already registered, and no encoder is involved.

Can the same card open several doors?

Yes. Put every entrance on the Access Grant, or pass a space that covers them, and the card is encoded for all of them at once. Adding a door later updates the credential.

What happens to a card when a stay ends?

The credential expires with the grant, so the card stops opening doors at ends_at whether or not it comes back to the desk. Revoking early is a deletion, not a trip to the lock.

Are plastic cards only for hotels?

No, but hotels and offices earn the most from them, because the readers and card stock are already installed. Cards are the cheapest credential to hand someone with no smartphone.

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